new latex package ionumbers (2nov08)

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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Master/texmf-dist/doc/latex/ionumbers/README b/Master/texmf-dist/doc/latex/ionumbers/README
new file mode 100644
index 00000000000..adc28bf23da
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/ionumbers/README
@@ -0,0 +1,96 @@
+SHORT DESCRIPTION
+=================
+
+(This is a copy of the LaTeX code of the documentation's abstract.)
+
+\textsf{ionumbers} stands for `input/output numbers'.
+
+This package restyles numbers in math mode. If a number in the input file
+is written, e.g., as |$3,231.44$| as commonly used in English texts, this
+package is able to restyle it to be output as `$3\,231{,}44$' as commonly
+used in German texts (and vice versa). This may be very useful, if you have
+a large table and want to include it in texts with different output
+conventions without the need of changing the table.
+
+Furthermore this package can automatically group digits left to the decimal
+separator (\emph{thousands}) and right to the decimal separator
+(\emph{thousandths}) in triplets without the need of specifing commas
+(English) or points (German) as separators. E.g., the input |$1234.567890$|
+can be output as `$1\,234.\,567\,890$'.
+
+Finally, an |e| starts the exponent of the number. For example, |$21e6$|
+may be output as `$26\times10\,^{6}$'.
+
+See `ionumbers.pdf' for detailed information on usage.
+
+BUILDING
+========
+
+If you do not want to use the pre-build `ionumber.sty' and `ionumber.pdf'
+files, you will have to choose one of the following two ways for building them.
+Otherwise you can skip this section.
+
+1) Building with make
+---------------------
+
+Running `make' will create the LaTeX package and documentation:
+  # make
+
+2) Building manually
+--------------------
+
+a) Generation of package (.sty file):
+
+Run `ionumbers.ins' through LaTeX:
+  # pdflatex -interaction=nonstopmode ionumbers.ins
+
+b) Generation of documentation:
+
+Run `ionumbers.dtx' through LaTeX:
+  # pdflatex -interaction=nonstopmode ionumbers.dtx
+
+Then create the index and change history:
+  # makeindex -s gind.ist -o ionumbers.ind ionumbers.idx
+  # makeindex -s gglo.ist -o ionumbers.gls ionumbers.glo
+
+Finally, run `ionumbers.dtx' three time through LaTeX.
+  # pdflatex -interaction=nonstopmode ionumbers.dtx
+  # pdflatex -interaction=nonstopmode ionumbers.dtx
+  # pdflatex -interaction=nonstopmode ionumbers.dtx
+
+INSTALLATION
+============
+
+Copy the file `ionumbers.sty' to a directory, where LaTeX will find it.
+
+LICENSE
+=======
+
+Copyright 2007-2008 Christian Schneider <software(at)chschneider(dot)eu>
+
+idea and parts of this package based on: ziffer.sty v2.1
+Copyright Martin Vaeth <vaeth@mathematik.uni-wuerzburg.de>
+
+ion@addto@macro: identical to l@addto@macro from koma-script
+                 bundle v2.9t
+Copyright 1994-2004 Markus Kohm and Frank Neukam
+
+Thanks to Martin Vaeth and Markus Kohm for permitting to use their
+code in this package. Please do not bother Martin, Markus, or Frank
+with questions or bugs concering this package!
+
+This file is part of ionumbers.
+
+ionumbers is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License version 3 as
+published by the Free Software Foundation, not any later version.
+
+ionumbers is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+
+WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
diff --git a/Master/texmf-dist/doc/latex/ionumbers/ionumbers.pdf b/Master/texmf-dist/doc/latex/ionumbers/ionumbers.pdf
new file mode 100644
index 00000000000..9b38bcbd7df
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/ionumbers/ionumbers.pdf
diff --git a/Master/texmf-dist/doc/latex/ionumbers/ionumbers_test.tex b/Master/texmf-dist/doc/latex/ionumbers/ionumbers_test.tex
new file mode 100644
index 00000000000..f13cd53e947
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/ionumbers/ionumbers_test.tex
@@ -0,0 +1,100 @@
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% test file for ionumbers package
+%
+% Copyright 2008 Christian Schneider <software(at)chschneider(dot)eu>
+%
+% This file is part of ionumbers.
+%
+% ionumbers is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License version 3 as
+% published by the Free Software Foundation, not any later version.
+%
+% ionumbers is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+%
+% WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\documentclass{article}
+
+\usepackage{ionumbers}
+
+\begin{document}
+  \noindent
+  \begin{minipage}{0.5\textwidth}
+    \centering
+    \begin{tabular}{r@{\hspace{1em}}r@{\hspace{1em}}r}
+      \hline\hline
+      Input & Output \\
+      \hline\hline
+      \verb!1234567890! & $1234567890$ \\
+      \verb!.123456789! & $.123456789$ \\
+      \verb!123.456789! & $123.456789$ \\
+      \verb!123456.789! & $123456.789$ \\
+      \verb!123456789.! & $123456789.$ \\
+      \verb!,123456789! & $,123456789$ \\
+      \verb!123,456789! & $123,456789$ \\
+      \verb!123456,789! & $123456,789$ \\
+      \verb!123456789,! & $123456789,$ \\
+      \hline\hline
+      \verb!1234567890! & $1234567890$ \\
+      \verb!.123.456.789! & $.123.456.789$ \\
+      \verb!1.234.567.89! & $1.234.567.89$ \\
+      \verb!12.345.678.9! & $12.345.678.9$ \\
+      \verb!123.456.789.! & $123.456.789.$ \\
+      \verb!,123,456,789! & $,123,456,789$ \\
+      \verb!1,234,567,89! & $1,234,567,89$ \\
+      \verb!12,345,678,9! & $12,345,678,9$ \\
+      \verb!123,456,789,! & $123,456,789,$ \\
+      \hline\hline
+      \verb!1234567890! & $1234567890$ \\
+      \verb!1.23.456.789! & $1.23.456.789$ \\
+      \verb!.1234.56789! & $.1234.56789$ \\
+      \verb!1,23,456,789! & $1,23,456,789$ \\
+      \verb!,1234,56789! & $,1234,56789$ \\
+      \hline\hline
+    \end{tabular}
+  \end{minipage}%
+  \begin{minipage}{0.5\textwidth}
+    \centering
+    \begin{tabular}{r@{\hspace{1em}}r@{\hspace{1em}}r}
+      \hline\hline
+      Input & Output \\
+      \hline\hline
+      \verb!1.23.456.789! & $1.23.456.789$ \\
+      \verb!.1234.56789! & $.1234.56789$ \\
+      \verb!1,23,456,789! & $1,23,456,789$ \\
+      \verb!,1234,56789! & $,1234,56789$ \\
+      \hline\hline
+      \verb!1234567890! & $1234567890$ \\
+      \verb!1,234,567.89! & $1,234,567.89$ \\
+      \verb!12,345,678.9! & $12,345,678.9$ \\
+      \verb!123,456,789.! & $123,456,789.$ \\
+      \verb!1.234.567,89! & $1.234.567,89$ \\
+      \verb!12.345.678,9! & $12.345.678,9$ \\
+      \verb!123.456.789,! & $123.456.789,$ \\
+      \hline\hline
+      \verb!+123456789! & $+1234567890$ \\
+      \verb!-123456789! & $-1234567890$ \\
+      \verb!+-123456789! & $+-1234567890$ \\
+      \verb!-+123456789! & $-+1234567890$ \\
+      \verb!+ -123456789! & $+ -1234567890$ \\
+      \hline\hline
+      \verb!1e123456789! & $1e123456789$ \\
+      \verb!1e+123456789! & $1e+123456789$ \\
+      \verb!1e-123456789! & $1e-123456789$ \\
+      \verb!1e.123456789! & $1e.123456789$ \\
+      \verb!1e,123456789! & $1e,123456789$ \\
+      \verb!1e123e123! & $1e123e123$ \\
+      \verb!1ee123456! & $1ee123456$ \\
+      \hline\hline
+    \end{tabular}
+  \end{minipage}
+\end{document}
diff --git a/Master/texmf-dist/source/latex/ionumbers/Makefile b/Master/texmf-dist/source/latex/ionumbers/Makefile
new file mode 100644
index 00000000000..7f8740747b9
--- /dev/null
+++ b/Master/texmf-dist/source/latex/ionumbers/Makefile
@@ -0,0 +1,58 @@
+#
+# Makefile for ionumbers package
+#
+# Copyright 2008 Christian Schneider <software(at)chschneider(dot)eu>
+#
+# This file is part of ionumbers.
+#
+# ionumbers is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation, not any later version.
+#
+# ionumbers is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+#
+# WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
+#
+
+PACKAGE   := ionumbers
+
+PDFLATEX  := pdflatex
+MAKEINDEX := makeindex
+
+.PHONY: all pkg doc clean distclean
+
+all: pkg doc
+
+%.sty: %.ins %.dtx
+	$(RM) $@
+	$(PDFLATEX) -interaction=nonstopmode $<
+
+%.idx %.glo: %.dtx %.sty
+	$(PDFLATEX) -interaction=nonstopmode $<
+
+%.ind: %.idx
+	$(MAKEINDEX) -s gind.ist -o $@ $<
+
+%.gls: %.glo
+	$(MAKEINDEX) -s gglo.ist -o $@ $<
+
+%.pdf: %.dtx %.sty %.ind %.gls
+	$(PDFLATEX) -interaction=nonstopmode $<
+	$(PDFLATEX) -interaction=nonstopmode $<
+	$(PDFLATEX) -interaction=nonstopmode $<
+
+pkg: $(PACKAGE).sty
+
+doc: $(PACKAGE).pdf
+
+clean:
+	$(RM) *.aux *.glo *.gls *.idx *.ilg *.ind *.log *.toc
+
+distclean: clean
+	$(RM) $(PACKAGE).sty $(PACKAGE).pdf
diff --git a/Master/texmf-dist/source/latex/ionumbers/ionumbers.dtx b/Master/texmf-dist/source/latex/ionumbers/ionumbers.dtx
new file mode 100644
index 00000000000..211237e341a
--- /dev/null
+++ b/Master/texmf-dist/source/latex/ionumbers/ionumbers.dtx
@@ -0,0 +1,1324 @@
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \iffalse meta-comment
+%
+% DocStrip file for ionumbers package
+%
+% Copyright 2007-2008 Christian Schneider <software(at)chschneider(dot)eu>
+%
+% idea and parts of this package based on: ziffer.sty v2.1
+% Copyright Martin Vaeth <vaeth@mathematik.uni-wuerzburg.de>
+%
+% ion@addto@macro: identical to l@addto@macro from koma-script
+%                  bundle v2.9t
+% Copyright 1994-2004 Markus Kohm and Frank Neukam
+%
+% Thanks to Martin Vaeth and Markus Kohm for permitting to use their
+% code in this package. Please do not bother Martin, Markus, or Frank
+% with questions or bugs concering this package!
+%
+% This file is part of ionumbers.
+%
+% ionumbers is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License version 3 as
+% published by the Free Software Foundation, not any later version.
+%
+% ionumbers is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+%
+% WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
+%
+% \fi
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \iffalse
+%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+%<package>\ProvidesPackage{ionumbers}
+%<package>  [2008/11/02 v0.2.1-alpha restyle numbers in math mode]
+%<*driver>
+\documentclass[a4paper]{ltxdoc}
+\usepackage{ionumbers}
+\EnableCrossrefs
+\CodelineIndex
+\RecordChanges
+%
+% modified description environment
+\newcommand{\listmark}{$\bullet$}
+\newcommand{\listlengths}{%
+  \setlength{\parsep}{0pt}%
+  \setlength{\itemsep}{0pt}%
+  \setlength{\leftmargin}{10.5em}%
+  \setlength{\rightmargin}{0pt}%
+  \setlength{\labelsep}{1em}%
+  \setlength{\labelwidth}{9.5em}}
+\newenvironment{mydescription}{%
+  \begin{list}{\listmark}{\listlengths}%
+}{%
+  \end{list}%
+}
+%
+\begin{document}
+  \DocInput{ionumbers.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \changes{v0.2.0-alpha}{2008/10/27}{Initial .dtx version}
+% \changes{v0.2.1-alpha}{2008/11/02}{Replaced website by e-mail address in
+%   all fields containing contact information}
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \CheckSum{1096}
+%
+% \CharacterTable
+% {Upper-case     \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%   Digits        \0\1\2\3\4\5\6\7\8\9
+%   Exclamation   \!     Double quote \"     Hash (number) \#
+%   Dollar        \$     Percent      \%     Ampersand     \&
+%   Acute accent  \'     Left paren   \(     Right paren   \)
+%   Asterisk      \*     Plus         \+     Comma         \,
+%   Minus         \-     Point        \.     Solidus       \/
+%   Colon         \:     Semicolon    \;     Less than     \<
+%   Equals        \=     Greater than \>     Question mark \?
+%   Commercial at \@     Left bracket \[     Backslash     \\
+%   Right bracket \]     Circumflex   \^     Underscore    \_
+%   Grave accent  \`     Left brace   \{     Vertical bar  \|
+%   Right brace   \}     Tilde        \~}
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \GetFileInfo{ionumbers.sty}
+%
+% \DoNotIndex{\#,\$,\%,\&,\@,\\,\{,\},\^,\_,\~,\ }
+% \DoNotIndex{\@ne}
+% \DoNotIndex{\advance,\begingroup,\catcode,\closein}
+% \DoNotIndex{\closeout,\day,\def,\edef,\else,\empty,\endgroup}
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \title{The \textsf{ionumbers} package\thanks{This document corresponds
+%   to \textsf{ionumbers}~\fileversion, dated~\filedate. Copyright
+%   2007-2008 Christian Schneider \texttt{<software(at)chschneider(dot)eu>}.}}
+% \author{Christian Schneider\\ \texttt{<software(at)chschneider(dot)eu>}}
+%
+% \maketitle
+%
+% \begin{center}
+%   \large\textbf{\textsf{Warning: This is alpha software and may
+%   contain serious bugs!}}
+% \end{center}
+%
+% \tableofcontents
+% \clearpage
+%
+% \begin{abstract}
+%   \textsf{ionumbers} stands for `input/output numbers'.
+%
+%   This package restyles numbers in math mode. If a number in the input file
+%   is written, e.g., as |$3,231.44$| as commonly used in English texts, this
+%   package is able to restyle it to be output as `$3\,231{,}44$' as commonly
+%   used in German texts (and vice versa). This may be very useful, if you have
+%   a large table and want to include it in texts with different output
+%   conventions without the need of changing the table.
+%
+%   Furthermore this package can automatically group digits left to the decimal
+%   separator (\emph{thousands}) and right to the decimal separator
+%   (\emph{thousandths}) in triplets without the need of specifing commas
+%   (English) or points (German) as separators. E.g., the input |$1234.567890$|
+%   can be output as `$1\,234.\,567\,890$'.
+%
+%   Finally, an |e| starts the exponent of the number. For example, |$21e6$|
+%   may be output as `$26\times10\,^{6}$'.
+% \end{abstract}
+%
+% \section{Conflicts with other packages}
+%
+% This package potentially conflicts with any other package that defines a
+% macro for any of the following characters: |.,+-0123456789|
+%
+% There are tests for these cases and warning or error messages may be output.
+% Please load \textsf{ionumbers} as last package to be able to detect as
+% many conflicts as possible. As there is no way to detect conflicts in all
+% cases, please report any package known to conflict with
+% \textsf{ionumbers} to the author.
+%
+% \section{Details of number handling}
+%
+% \subsection{General rules}
+%
+% Every input \emph{in math mode} consisting of the following characters is
+% treated by this package: |.,+-0123456789| These characters get macro
+% definitions. A number is any combination of these characters without
+% anything---not even white spaces---in between them. There are two
+% exceptions/special cases:
+%
+% \begin{enumerate}
+%   \item The separator characters |.| and |,| are not treated as part of the
+%     number at its end. This avoids problems with lists like
+%     |1, 2, 3, \ldots|, where the commas are not part of in the numbers. Note,
+%     however, that the commas are treated as part of the numbers in the first
+%     two appearances in |1,2,3,\ldots|, as the commas are immediately followed
+%     by a digit. Please input lists with white spaces after the separators as
+%     shown in the first case.
+%   \item The sign characters |+| and |-| will only be considered as part of
+%     the number, if they appear at the begining of a number.
+% \end{enumerate}
+%
+% The lower case letter |e| plays a special role. An |e| following immediatly a
+% number (without any white space or other input in between) can be configured
+% as begining of the exponential part of a number. The letter is eaten from the
+% input in this case and substituted by some configurable output. (It is
+% virtually impossible to handle it the same way as the other and assigning a
+% macro definition to |e|.)
+%
+% \subsection{Caveats}
+%
+% Please be aware that the first decimal separator of a number marks the
+% begining of the thousandths part of a number; every part of a number
+% appearing left to the first decimal separator is the thousands part. That is
+% why, the input |$1.234.567$| with (only) the package option
+% |autothousandths=true| (|.| is the thousands separator; option will be
+% explained later) will lead to `$1.234.\,567$' in the output. Note the small
+% space after the second point as a result of |234.567| being treated as
+% thousandths part. The thousandths separator---by default a small space---will
+% be output between the third and fourth digit of the thousandths part; the
+% additional point from the input will not be omitted. The input is
+% syntactically incorrect (there must not be two decimal separators in one
+% number) and the output is \emph{not} a bug of this package.
+%
+% A number following an |e| treated as exponential part of a number may be
+% typeset as superscript (depending on the configuration). In the case of an
+% exponential part there \emph{may} be arbitrary input between |e| and the
+% number in the exponent. Especially, the input |$1e \Pi 2| with package option
+% |exponent=timestento| (will be explained later) leads to a superscript
+% |2| in the output: `$1\times10\,\Pi^{2}$'. Again, the input is
+% syntactically incorrect and there is no easy way to circumvent |e| from being
+% treated as begining of the exponential part in this case (at least, I did not
+% find it).
+%
+% \section{Usage}
+%
+% Package options are used to globally configure a default behaviour of
+% \textsf{ionumbers} for the whole document. These options usually consist
+% of a \meta{key}|=|\meta{value} pair. Local changes from this global
+% configuration for arbitrary parts of the document can be applied with special
+% commands.
+%
+% \subsection{Package options concerning the separators in the input}
+% \label{sec:in}
+%
+% The following options configure the meaning of separators in the \LaTeX{}
+% input file:
+% \begin{mydescription}
+%   \item[\texttt{comma}=\meta{value}] comma `|,|' will be treated as \meta{value}
+%   \item[\texttt{point}=\meta{value}] point `|.|' will be treated as \meta{value}
+% \end{mydescription}
+%
+% The following \meta{value}s can be chosen for both of them:
+% \begin{mydescription}
+%   \item[\texttt{ignore}] the separator will be ignored (no output)
+%   \item[\texttt{decimal}] decimal separator (separating the thousands from
+%     the thousandths part of a number)
+%   \item[\texttt{thousands}] thousands separator (used for grouping of
+%     thousands part)
+%   \item[\texttt{default}] default behaviour of \textsf{ionumbers}
+%     (|decimal| for |point|; |thousands| for |comma|)
+% \end{mydescription}
+%
+% The separator for exponents is always the lowercase letter |e|. A
+% thousandths separator does not exist in input files; such a separator will
+% only be output, if automatic grouping of the thousandths part is enabled (see
+% below).
+%
+% \subsection{Package options concerning the separators in the output}
+% \label{sec:out}
+%
+% The previously described options assign a \emph{meaning} to separators in
+% the input file. The \emph{output} of the \emph{meanings} is configured via
+% the following options:
+% \begin{mydescription}
+%   \item[\texttt{thousands}=\meta{value}] thousands separator will be output as \meta{value}
+%   \item[\texttt{decimal}=\meta{value}] decimal separator will be output as \meta{value}
+%   \item[\texttt{thousandths}=\meta{value}] thousandths separator will be \meta{value}
+%   \item[\texttt{exponent}=\meta{value}] exponent separator will be output as \meta{value}
+% \end{mydescription}
+%
+% The list of valid \meta{value}s for |thousands|, |decimal|, and |thousandths| is:
+% \begin{mydescription}
+%   \item[\texttt{none}] will be ignored (no output)
+%   \item[\texttt{point}] normal point; this is the default point without
+%     \textsf{ionumbers}
+%   \item[\texttt{comma}] normal comma
+%   \item[\texttt{punctpoint}] punctuation point (point followed by small space)
+%   \item[\texttt{punctcomma}] punctuation comma (point followed by small space);
+%     this is the default comma without \textsf{ionumbers}
+%   \item[\texttt{apostrophe}] apostrophe (actually |$^\prime$|; \emph{not} for
+%     |decimal|)
+%   \item[\texttt{phantom}] space with width of a point (|$\phantom{.}$|;
+%     \emph{not} for |decimal|)
+%   \item[\texttt{space}] small space (|$\,$|; \emph{not} for |decimal|)
+%   \item[\texttt{default}] default behaviour of \textsf{ionumbers}
+%     (|punctcomma| for |thousands|; |point| for |decimal|; |space| for
+%    |thousandths|)
+% \end{mydescription}
+%
+% The list of valid \meta{value}s for |exponent| is:
+% \begin{mydescription}
+%   \item[\texttt{none}] will be ignored (no output)
+%   \item[\texttt{ite/itE}] italic lower/upper case letter `e'
+%   \item[\texttt{rme/rmE}] roman lower/upper case letter `e'
+%   \item[\texttt{timestento}] |$\times10\,$| with following number output as
+%     superscript
+%   \item[\texttt{cdottento}] |$\cdot10\,$| with following number output as
+%     superscript
+%   \item[\texttt{wedge}] |$^\wedge$|
+%   \item[\texttt{default}] default behaviour of \textsf{ionumbers} (|ite|)
+% \end{mydescription}
+%
+% \subsection{Package options concerning automatic grouping}
+% \label{sec:auto}
+%
+% Automatic grouping is a feature that automatically adds the thousands and
+% thousandths separator, respectively. The separator will be added after each
+% triplet of digits. Automatic grouping can be enable or disabled with the
+% following options:
+% \begin{mydescription}
+%   \item[\texttt{autothousands}=\meta{value}] automatic grouping of thousands
+%     (digits left to decimal separator)
+%   \item[\texttt{autothousandths}=\meta{value}] automatic grouping of
+%     thousandths (digits right to decimal separator)
+% \end{mydescription}
+%
+% The available \meta{value}s are |true| and |false| (default).
+%
+% Notes on automatic grouping:
+% \begin{enumerate}
+%   \item Grouping of thousandths requires |autothousandths=true| in any case,
+%     as there is no thousandths separator for explicitly specifing separations
+%     in the input.
+%   \item Automatic grouping of thousands will be skipped in a number, if it
+%     contains a thousands separator in the input.
+% \end{enumerate}
+%
+% \subsection{Local style changes}
+%
+% \DescribeMacro{\ionumbersstyle}
+% The command |\ionumbersstyle|\marg{option list} changes the global style
+% definitions as specified as package options for the rest of the group.
+% The \meta{option list} may contain any of the package options described in
+% sections~\ref{sec:in}--\ref{sec:auto}. An additional \meta{value} for all
+% \meta{key}s is available inside |\ionumbersstyle| to switch back to the
+% configuration specified as package options: |reset|.
+%
+% \DescribeMacro{\ionumbersresetstyle}
+% The command |\ionumbersresetstyle| resets all \meta{value}s to the
+% configuration specified as package options. Actually, it is only a shorthand
+% for\\
+% |\ionumbersstyle{comma=reset,point=reset,decimal=reset,...}|.
+%
+% \subsection{User-defined values for output separators}
+% \label{sec:defs}
+%
+% A user may specify further output separators. Any user-defined \meta{value}s
+% for |thousands|, |decimal|, |thousandths|, and |exponent| can be used like
+% the built-in options in section~\ref{sec:out}.
+%
+% \DescribeMacro{\newionumbersthousands}
+% \DescribeMacro{\newionumbersdecimal}
+% \DescribeMacro{\newionumbersthousandths}
+% \DescribeMacro{\newionumbersexponent}
+% The command |\newionumbersthousands|\marg{value}\marg{definition} has two
+% mandatory arguments. The first one is the name of the newly defined
+% \meta{value} for the |thousands| \meta{key} and the second one its
+% definition. The commands |\newionumbersdecimal|, |\newionumbersthousandths|,
+% and |\newionumbersexponent| work the same way for the |decimal|,
+% |thousandths|, and |exponent| \meta{key}, respectively. There is a starred
+% version of |\newionumbersexponent| (called |\newionumbersexponent*|) that
+% typesets the following number as superscript.
+%
+% \DescribeMacro{\renewionumbersthousands}
+% \DescribeMacro{\renewionumbersdecimal}
+% \DescribeMacro{\renewionumbersthousandths}
+% \DescribeMacro{\renewionumbersexponent}
+% To redefine an existing \meta{key} definition there are |\renew...| versions
+% of the previously described commands.
+%
+% Notes on definitions:
+% \begin{enumerate}
+%   \item All \meta{definition}s are set inside |\ionumbersoff| (see
+%     section~\ref{sec:feat}). This means that numbers appearing in the
+%     \meta{definition}s are not treated by this package.
+%   \item The value |curr| has an internal meaning and should \emph{not} be
+%     defined/redefined by the user.
+% \end{enumerate}
+%
+% \subsection{Enabling and disabling features}
+% \label{sec:feat}
+%
+% \DescribeMacro{\ionumbers}
+% The command |\ionumbers| makes comma, point, signs, and digits active in math
+% mode. This is equivalent to enabling the features of this package. This
+% command applies to the end of the current group.
+%
+% \DescribeMacro{\endionumbers}
+% To disable the features by making comma, point, signs, and digits inactive
+% again the command |\endionumbers| can be used. This command applies to the
+% end of the current group.
+%
+% \DescribeMacro{\ionumbersoff}
+% The command |\ionumbersoff|\marg{stuff} disables the features only for
+% \meta{stuff}.
+%
+% \section{License}
+%
+% \textsf{ionumbers} is free software: you can redistribute it and/or
+% modify it under the terms of the GNU General Public License version~3 as
+% published by the Free Software Foundation, not any later version.
+%
+% \textsf{ionumbers} is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+% Public License for more details.
+%
+% You should have received a copy of the GNU General Public License along with
+% ionumbers.  If not, see \texttt{<http://www.gnu.org/licenses/>}.
+%
+% \section{Acknowledgements}
+%
+% The idea and parts of this package are based on \textsf{ziffer.sty}~v2.1 by
+% Martin V\"ath \texttt{<vaeth@mathematik.uni-wuerzburg.de>}.
+%
+% Furthermore the |\l@addto@macro| (with changed name) from
+% \textsf{koma-script bundle}~v2.9t by Markus Kohm and Frank Neukam is
+% used in this package.
+%
+% Thanks to Martin V\"ath and Markus Kohm for permitting to use their code in
+% this package.
+%
+% \section{Bugs, problems, and suggestions}
+%
+% Please report bugs and problems or send suggestions for this package to
+% Christian Schneider. Check for updates before reporting bugs at the website
+% mentioned above. Do \emph{not} bother Martin V\"ath, Markus Kohm, or Frank
+% Neukam with bugs, problems or suggestions concerning this package!
+%
+% \StopEventually{\PrintChanges\PrintIndex}
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \section{Implementation}
+%
+% The implementation is briefly described in this section. First of all, we
+% need the \textsf{keyval} package for \meta{key}|=|\meta{value} options:
+%    \begin{macrocode}
+\RequirePackage{keyval}
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Default/global configuration}
+%
+% In principle the definitions of all available \meta{key'}|=|\meta{value'}
+% pairs is contained in the internal macros |\ion@|\meta{key'}|@|\meta{value'}.
+% Setting a package option \meta{key}|=|\meta{value} defines
+% |\ion@|\meta{key}|@reset| to be |\ion@|\meta{key}|@|\meta{value}.
+%
+% The following |if|s will be required to remember, if automatic grouping is
+% enabled.
+%    \begin{macrocode}
+\newif\ifion@autothousands
+\newif\ifion@autothousandths
+%    \end{macrocode}
+%
+% These shorthands are used to define the \meta{key}s for package options
+% and set their \meta{value}s using \textsf{keyval}, respectively.
+%    \begin{macrocode}
+\newcommand*\ion@defpackopts{\define@key{ion@packopts}}
+\newcommand*\ion@setpackopts{\setkeys{ion@packopts}}
+%    \end{macrocode}
+%
+% Next the \meta{key}s are defined.
+%    \begin{macrocode}
+\ion@defpackopts{comma}{%
+  \def\ion@comma@reset{\csname ion@comma@#1\endcsname}%
+  \def\ion@aftercomma@reset{\csname ion@aftercomma@#1\endcsname}}
+\ion@defpackopts{point}{%
+  \def\ion@point@reset{\csname ion@point@#1\endcsname}%
+  \def\ion@afterpoint@reset{\csname ion@afterpoint@#1\endcsname}}
+\ion@defpackopts{decimal}{\def\ion@decimal@reset{%
+  \csname ion@decimal@#1\endcsname}}
+\ion@defpackopts{thousands}{\def\ion@thousands@reset{%
+  \csname ion@thousands@#1\endcsname}}
+\ion@defpackopts{thousandths}{\def\ion@thousandths@reset{%
+  \csname ion@thousandths@#1\endcsname}}
+\ion@defpackopts{exponent}{\def\ion@exponent@reset{%
+  \csname ion@exponent@#1\endcsname}}
+\ion@defpackopts{autothousands}[true]{\def\ion@autothousandsreset{%
+  \csname ion@autothousands#1\endcsname}\ion@autothousandsreset}
+\ion@defpackopts{autothousandths}[true]{\def\ion@autothousandthsreset{%
+  \csname ion@autothousandths#1\endcsname}\ion@autothousandthsreset}
+%    \end{macrocode}
+%
+% Finally, the default \meta{value}s are set and---if specified by the user as
+% package option---overwritten with the user's configuration.
+%    \begin{macrocode}
+\ion@setpackopts{comma=default,point=default,thousands=default,%
+  decimal=default,thousandths=default,exponent=default,autothousands=false,%
+  autothousandths=false}
+\DeclareOption*{\expandafter\ion@setpackopts\expandafter{\CurrentOption}}
+\ProcessOptions\relax
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Local style changes}
+%
+% The currently active configuration of a \meta{key} is stored in the macro
+% |\ion@|\meta{key}|@curr|. The |\ion@|\meta{key}|@curr| macros for all
+% \meta{key}s are defined using the mechanism for local configuration changes.
+%
+% The local options are defined and set---analogous to the package option
+% case---with two shorthands using \textsf{keyval}. The latter is
+% publically available to the user.
+%    \begin{macrocode}
+\newcommand*\ion@deflocopts{\define@key{ion@locopts}}
+%    \end{macrocode}
+% \begin{macro}{\ionumberstyle}
+%    \begin{macrocode}
+\newcommand*\ionumbersstyle[1]{\setkeys{ion@locopts}{#1}}
+%    \end{macrocode}
+% \end{macro}
+%
+% Now the \meta{key}s for the local options are defined (just as in the case of
+% the package options):
+%    \begin{macrocode}
+\ion@deflocopts{comma}{%
+  \def\ion@comma@curr{\csname ion@comma@#1\endcsname}%
+  \def\ion@aftercomma@curr{\csname ion@aftercomma@#1\endcsname}}
+\ion@deflocopts{point}{%
+  \def\ion@point@curr{\csname ion@point@#1\endcsname}%
+  \def\ion@afterpoint@curr{\csname ion@afterpoint@#1\endcsname}}
+\ion@deflocopts{decimal}{\def\ion@decimal@curr{%
+  \csname ion@decimal@#1\endcsname}}
+\ion@deflocopts{thousands}{\def\ion@thousands@curr{%
+  \csname ion@thousands@#1\endcsname}}
+\ion@deflocopts{thousandths}{\def\ion@thousandths@curr{%
+  \csname ion@thousandths@#1\endcsname}}
+\ion@deflocopts{exponent}{\def\ion@exponent@curr{%
+  \csname ion@exponent@#1\endcsname}}
+\ion@deflocopts{autothousands}[true]{\csname ion@autothousands#1\endcsname}
+\ion@deflocopts{autothousandths}[true]{\csname ion@autothousandths#1\endcsname}
+%    \end{macrocode}
+%
+% Finally, the command for resetting all \meta{key}s is defined.
+% \begin{macro}{\ionumbersresetstyle}
+%    \begin{macrocode}
+\newcommand*\ionumbersresetstyle{%
+  \ionumbersstyle{comma=reset,point=reset,thousands=reset,%
+    decimal=reset,thousandths=reset,exponent=reset,autothousands=reset,%
+    autothousandths=reset}}
+%    \end{macrocode}
+% \end{macro}
+% This command is issued at the end of the package to make the configuration
+% of the package options active (and have no undefined |\ion@|\meta{key}|@curr|
+% macros).
+%    \begin{macrocode}
+\AtEndOfPackage{\ionumbersresetstyle}
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{User-defined values for output separators}
+%
+% The commands for user-defined \meta{value}s for output separators just
+% (re)define the internal macro |\ion@|\meta{key}|@|\meta{value} storing
+% the definition for the \meta{key}|=|\meta{value} pair.
+%
+% \begin{macro}{\newionumbersthousands}
+%    \begin{macrocode}
+\newcommand*\newionumbersthousands[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@thousands@#1\endcsname{\ionumbersoff{#2}}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\newionumbersdecimal}
+%    \begin{macrocode}
+\newcommand*\newionumbersdecimal[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@decimal@#1\endcsname{\ionumbersoff{#2}}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\newionumbersthousandths}
+%    \begin{macrocode}
+\newcommand*\newionumbersthousandths[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@thousandths@#1\endcsname{\ionumbersoff{#2}}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\newionumbersexponent}
+%    \begin{macrocode}
+\newcommand*\newionumbersexponent{%
+  \@ifstar{\newionumbersexponent@@}{\newionumbersexponent@}}
+\newcommand*\newionumbersexponent@[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\newionumbersexponent@@[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}%
+  \ion@exponent@superscripttrue}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\renewionumbersthousands}
+%    \begin{macrocode}
+\newcommand*\renewionumbersthousands[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@thousands@#1\endcsname{\ionumbersoff{#2}}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\renewionumbersdecimal}
+%    \begin{macrocode}
+\newcommand*\renewionumbersdecimal[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@decimal@#1\endcsname{\ionumbersoff{#2}}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\renewionumbersthousandths}
+%    \begin{macrocode}
+\newcommand*\renewionumbersthousandths[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@thousandths@#1\endcsname{\ionumbersoff{#2}}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\renewionumbersexponent}
+%    \begin{macrocode}
+\newcommand*\renewionumbersexponent{%
+  \@ifstar{\renewionumbersexponent@@}{\renewionumbersexponent@}}
+\newcommand*\renewionumbersexponent@[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\renewionumbersexponent@@[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}%
+  \ion@exponent@superscripttrue}}
+%    \end{macrocode}
+% \end{macro}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Internal macros holding definitions for \meta{key}=\meta{value}
+% pairs}
+%
+% First of all, macros with the original character definitions of |.,+-| are
+% defined.
+%    \begin{macrocode}
+\mathchardef\ion@point@original="013A
+\mathchardef\ion@comma@original="613B
+\mathchardef\ion@plus@original="202B
+\mathchardef\ion@minus@original="2200
+%    \end{macrocode}
+%
+% Here the |\ion@|\meta{key}|@|\meta{value} macros are defined, begining with
+% the definitions for the comma as input separator.
+%    \begin{macrocode}
+\def\ion@comma@ignore{}
+\def\ion@comma@decimal{\ion@decimal@curr}
+\def\ion@comma@thousands{\ion@thousands@curr}
+\def\ion@comma@default{\ion@comma@thousands}
+%    \end{macrocode}
+% The macros |\ion@comma@|\meta{value} contain the output for a comma appearing
+% in the input. Actually, a second set of |\ion@|aftercomma|@|\meta{value}
+% macros is required containing commands to be issued whenever a comma appears.
+% If comma is the decimal separator, the appearance of comma in the input will
+% mean that input of the thousands part is complete and the thousandths
+% thousandths part starts (|\ion@beforedecimalfalse| must be issued). If comma
+% is the thousands separator, the automatic grouping of thousands will be
+% switched of for that number (|\ion@noexplicitthousandsfalse| must be issued).
+%    \begin{macrocode}
+\def\ion@aftercomma@ignore{}
+\def\ion@aftercomma@decimal{\ion@beforedecimalfalse}
+\def\ion@aftercomma@thousands{\ion@noexplicitthousandsfalse}
+\def\ion@aftercomma@default{\ion@aftercomma@thousands}
+%    \end{macrocode}
+%
+% An analogous set of macros is defined for the point as input separator.
+%    \begin{macrocode}
+\def\ion@point@ignore{}
+\def\ion@point@decimal{\ion@decimal@curr}
+\def\ion@point@thousands{\ion@thousands@curr}
+\def\ion@point@default{\ion@point@decimal}
+%    \end{macrocode}
+% For the same reasons as mentioned before a set of
+% |\ion@|afterpoint|@|\meta{value} macros is required.
+%    \begin{macrocode}
+\def\ion@afterpoint@ignore{}
+\def\ion@afterpoint@decimal{\ion@beforedecimalfalse}
+\def\ion@afterpoint@thousands{\ion@noexplicitthousandsfalse}
+\def\ion@afterpoint@default{\ion@afterpoint@decimal}
+%    \end{macrocode}
+%
+% Next the definitions for the decimal output separator, \ldots
+%    \begin{macrocode}
+\mathchardef\ion@decimal@point="013A
+\mathchardef\ion@decimal@comma="013B
+\mathchardef\ion@decimal@punctpoint="613A
+\mathchardef\ion@decimal@punctcomma="613B
+\def\ion@decimal@default{\ion@decimal@point}
+%    \end{macrocode}
+%
+% \ldots{} the thousands output separator, \ldots
+%    \begin{macrocode}
+\def\ion@thousands@none{}
+\mathchardef\ion@thousands@comma="013B
+\mathchardef\ion@thousands@point="013A
+\mathchardef\ion@thousands@punctcomma="613B
+\mathchardef\ion@thousands@punctpoint="613A
+\def\ion@thousands@apostrophe{^\prime}
+\def\ion@thousands@phantom{\phantom{\ion@point@original}}
+\def\ion@thousands@space{\,}
+\def\ion@thousands@default{\ion@thousands@punctcomma}
+%    \end{macrocode}
+%
+% \ldots{} the thousandths output separator, \ldots
+%    \begin{macrocode}
+\def\ion@thousandths@none{}
+\mathchardef\ion@thousandths@comma="013B
+\mathchardef\ion@thousandths@point="013A
+\mathchardef\ion@thousandths@punctcomma="613B
+\mathchardef\ion@thousandths@punctpoint="613A
+\def\ion@thousandths@apostrophe{^\prime}
+\def\ion@thousandths@phantom{\phantom{\ion@point@original}}
+\def\ion@thousandths@space{\,}
+\def\ion@thousandths@default{\ion@thousandths@space}
+%    \end{macrocode}
+%
+% \ldots{} and the exponent output separator are given.
+%    \begin{macrocode}
+\def\ion@exponent@none{}
+\mathchardef\ion@exponent@ite="7165
+\mathchardef\ion@exponent@itE="7145
+\mathchardef\ion@exponent@rme="7065
+\mathchardef\ion@exponent@rmE="7045
+\def\ion@exponent@timestento{\times10\,\ion@exponent@superscripttrue}
+\def\ion@exponent@cdottento{\cdot10\,\ion@exponent@superscripttrue}
+\def\ion@exponent@wedge{^\wedge}
+\def\ion@exponent@default{\ion@exponent@ite}
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Enabling and disabling features}
+%
+% The following helper macros make different subsets of |.,+-0123456789|
+% active.
+%    \begin{macrocode}
+\def\ion@separators@active{\catcode`\,=\active\catcode`\.=\active\relax}
+\def\ion@signs@active{\catcode`\+=\active\catcode`\-=\active\relax}
+\def\ion@digits@active{\catcode`\,=\active\catcode`\.=\active%
+  \catcode`\0=\active\catcode`\1=\active\catcode`\2=\active%
+  \catcode`\3=\active\catcode`\4=\active\catcode`\5=\active%
+  \catcode`\6=\active\catcode`\7=\active\catcode`\8=\active%
+  \catcode`\9=\active\relax}
+%    \end{macrocode}
+%
+% An analogous set of macros makes subsets of these characters active/inactive
+% in math mode.
+%    \begin{macrocode}
+\def\ion@separators@math@active{\mathcode`,="8000\mathcode`.="8000\relax}
+\def\ion@separators@math@inactive{\mathcode`,="613B\mathcode`.="013A\relax}
+\def\ion@signs@math@active{\mathcode`+="8000\mathcode`-="8000\relax}
+\def\ion@signs@math@inactive{\mathcode`+="202B\mathcode`-="2200\relax}
+\def\ion@digits@math@active{\mathcode`0="8000\mathcode`1="8000\mathcode`2="8000%
+  \mathcode`3="8000\mathcode`4="8000\mathcode`5="8000\mathcode`6="8000%
+  \mathcode`7="8000\mathcode`8="8000\mathcode`9="8000\relax}
+\def\ion@digits@math@inactive{\mathcode`0="7030\mathcode`1="7031%
+  \mathcode`2="7032\mathcode`3="7033\mathcode`4="7034\mathcode`5="7035%
+  \mathcode`6="7036\mathcode`7="7037\mathcode`8="7038\mathcode`9="7039\relax}
+%    \end{macrocode}
+%
+% Next the user interface for making |.,+-0123456789| active/inactive follows.
+% \begin{macro}{\ionumbers}
+%    \begin{macrocode}
+\def\ionumbers{\ion@separators@math@active\ion@signs@math@active%
+  \ion@digits@math@active}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\endionumbers}
+%    \begin{macrocode}
+\def\endionumbers{\ion@separators@math@inactive\ion@signs@math@inactive%
+  \ion@digits@math@inactive}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\ionumbersoff}
+%    \begin{macrocode}
+\newcommand\ionumbersoff[1]{\begingroup\endionumbers#1\ionumbers\endgroup}
+%    \end{macrocode}
+% \end{macro}
+%
+% Of course, at the begining of the document the charactars shall be active
+% by default.
+%    \begin{macrocode}
+\AtBeginDocument{\ionumbers}
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Definitions of active characters}
+%
+% The macro definitions for the characters |.,+-0123456789| are hold in the
+% following macros. Number processing works by looking at the next character
+% and performing on or more from the following actions:
+% \begin{itemize}
+%   \item the currently configured output for the character will be added to
+%     the end of |\ion@comma@curr| by |\ion@currnum@pushback|;
+%     |\ion@comma@curr| stores the currently processed number
+%   \item only for comma/point: the corresponding |after...| macro will be
+%     issued
+%   \item the currently processed number will be output via
+%     |\ion@currnum@output|
+%   \item the |e| will be eaten and replaced by its configured output
+% \end{itemize}
+% The conditions in the macro definitions should be self-explanatory for each
+% character.
+%
+%    \begin{macrocode}
+\def\ion@comma{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@comma@curr}\ion@aftercomma@curr%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@comma@curr}\ion@aftercomma@curr%
+        \@warning{Too many separators}%
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@pushback*{\ion@comma@curr}\ion@aftercomma@curr%
+          \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output\ion@comma@original%
+      }%
+    }%
+  }%
+}
+\def\ion@point{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@point@curr}\ion@afterpoint@curr%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@point@curr}\ion@afterpoint@curr%
+        \@warning{Too many separators}%
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@pushback*{\ion@point@curr}\ion@afterpoint@curr%
+          \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output\ion@point@original%
+      }%
+    }%
+  }%
+}
+\def\ion@plus{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@plus@original}%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@plus@original}%
+    }{%
+      \ion@ifnextsign{%
+        \ion@currnum@pushback*{\ion@plus@original}\@warning{Too many signs}%
+      }{%
+        \ion@currnum@output\ion@plus@original%
+      }%
+    }%
+  }%
+}
+\def\ion@minus{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@minus@original}%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@minus@original}%
+    }{%
+      \ion@ifnextsign{%
+        \ion@currnum@pushback*{\ion@minus@original}\@warning{Too many signs}%
+      }{%
+        \ion@currnum@output\ion@minus@original%
+      }%
+    }%
+  }%
+}
+\def\ion@zero{\ion@currnum@pushback{\mathchar"7030}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@one{\ion@currnum@pushback{\mathchar"7031}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@two{\ion@currnum@pushback{\mathchar"7032}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@three{\ion@currnum@pushback{\mathchar"7033}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@four{\ion@currnum@pushback{\mathchar"7034}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@five{\ion@currnum@pushback{\mathchar"7035}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@six{\ion@currnum@pushback{\mathchar"7036}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@seven{\ion@currnum@pushback{\mathchar"7037}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@eight{\ion@currnum@pushback{\mathchar"7038}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@nine{\ion@currnum@pushback{\mathchar"7039}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+%    \end{macrocode}
+%
+% The macro |\ion@define@charmacros| is used to assign the above macros to the
+% (active) characters |.,+-0123456789|. It will be executed later in the
+% conflict test section.
+%    \begin{macrocode}
+\begingroup
+  \ion@separators@active\ion@signs@active\ion@digits@active
+  \gdef\ion@define@charmacros{%
+    \global\let,=\ion@comma%
+    \global\let.=\ion@point%
+    \global\let+=\ion@plus%
+    \global\let-=\ion@minus%
+    \global\let0=\ion@zero%
+    \global\let1=\ion@one%
+    \global\let2=\ion@two%
+    \global\let3=\ion@three%
+    \global\let4=\ion@four%
+    \global\let5=\ion@five%
+    \global\let6=\ion@six%
+    \global\let7=\ion@seven%
+    \global\let8=\ion@eight%
+    \global\let9=\ion@nine%
+  }
+\endgroup
+%    \end{macrocode}
+%
+% Now the macros for the conditions in the above definitions follow. There are
+% tests for a digit |0123456789|, \ldots
+%    \begin{macrocode}
+\long\def\ion@ifnextdigit#1#2{%
+  \def\reserved@a{#1}%
+  \def\reserved@b{#2}%
+  \futurelet\@let@token\ion@ifnextdigit@}
+\def\ion@ifnextdigit@{%
+  \ifx\@let@token1\let\reserved@c\reserved@a\else%
+    \ifx\@let@token2\let\reserved@c\reserved@a\else%
+      \ifx\@let@token3\let\reserved@c\reserved@a\else%
+        \ifx\@let@token4\let\reserved@c\reserved@a\else%
+          \ifx\@let@token5\let\reserved@c\reserved@a\else%
+            \ifx\@let@token6\let\reserved@c\reserved@a\else%
+              \ifx\@let@token7\let\reserved@c\reserved@a\else%
+                \ifx\@let@token8\let\reserved@c\reserved@a\else%
+                  \ifx\@let@token9\let\reserved@c\reserved@a\else%
+                    \ifx\@let@token0\let\reserved@c\reserved@a\else%
+                      \let\reserved@c\reserved@b%
+                    \fi%
+                  \fi%
+                \fi%
+              \fi%
+            \fi%
+          \fi%
+        \fi%
+      \fi%
+    \fi%
+  \fi%
+  \reserved@c}
+%    \end{macrocode}
+%
+% \ldots{} for a separator |.,|, \ldots
+%    \begin{macrocode}
+\long\def\ion@ifnextseparator#1#2{%
+  \def\reserved@a{#1}%
+  \def\reserved@b{#2}%
+  \futurelet\@let@token\ion@ifnextseparator@}
+\def\ion@ifnextseparator@{%
+  \ifx\@let@token,\let\reserved@c\reserved@a\else%
+    \ifx\@let@token.\let\reserved@c\reserved@a\else%
+      \let\reserved@c\reserved@b%
+    \fi%
+  \fi%
+  \reserved@c}
+%    \end{macrocode}
+%
+% \ldots{} and for a sign |+-| as next character.
+%    \begin{macrocode}
+\long\def\ion@ifnextsign#1#2{%
+  \def\reserved@a{#1}%
+  \def\reserved@b{#2}%
+  \futurelet\@let@token\ion@ifnextsign@}
+\def\ion@ifnextsign@{%
+  \ifx\@let@token+\let\reserved@c\reserved@a\else%
+    \ifx\@let@token-\let\reserved@c\reserved@a\else%
+      \let\reserved@c\reserved@b%
+    \fi%
+  \fi%
+  \reserved@c}
+%    \end{macrocode}
+%
+% An additional test for an arbitrary character is also added. It obeys white
+% spaces in contrast to \LaTeX{}'s |\@ifnextchar|.
+%    \begin{macrocode}
+\long\def\ion@ifnextchar#1#2#3{%
+  \let\reserved@d=#1%
+  \def\reserved@a{#2}%
+  \def\reserved@b{#3}%
+  \futurelet\@let@token\ion@ifnextchar@}
+\def\ion@ifnextchar@{%
+  \ifx\@let@token\reserved@d%
+    \let\reserved@c\reserved@a%
+  \else%
+    \let\reserved@c\reserved@b%
+  \fi%
+  \reserved@c}
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Test for conflicts with other packages}
+%
+% First of all we test for some packages known to conflict with
+% \textsf{ionumbers}. This will be done by checking at the begining of the
+% document, if one of these packages has been loaded and an error/warning will
+% be issued.
+%    \begin{macrocode}
+\newcommand*{\ion@conflict@package}[1]{%
+  \@ifpackageloaded{#1}{\PackageError{ionumbers}%
+    {Packages #1 and ionumbers conflict!\MessageBreak%
+    Do not load both packages in the same document}{}}{}}
+\newcommand*{\ion@problem@package}[2]{%
+  \@ifpackageloaded{#1}{\PackageWarning{ionumbers}%
+    {Loading #1 and ionumbers is\MessageBreak%
+    problematic!\MessageBreak%
+    #2}{}}}
+\AtBeginDocument{%
+  \ion@conflict@package{ziffer}%
+  \ion@problem@package{dcolumn}{Use `tabular's inside \string\ionumbersoff}%
+}
+%    \end{macrocode}
+%
+% Next the characters |.,+-0123456789| are checked for macro definitions (by
+% other packages). This way conflicts with other packages may be detected with
+% some probability (but only if the conflicting package has already been
+% loaded).
+%    \begin{macrocode}
+\newcommand*\ion@conflict@definedtest[1]{%
+  \ifx#1\@undefined\else\PackageWarning{ionumbers}%
+    {Potential conflict with other package(s) detected.\MessageBreak%
+    `\string#1' has already been defined. I will redefine it.\MessageBreak%
+    This might break other package(s)!\MessageBreak}\fi}
+\begingroup
+  \ion@separators@active\ion@signs@active\ion@digits@active
+  \ion@conflict@definedtest{,}
+  \ion@conflict@definedtest{.}
+  \ion@conflict@definedtest{+}
+  \ion@conflict@definedtest{-}
+  \ion@conflict@definedtest{0}
+  \ion@conflict@definedtest{1}
+  \ion@conflict@definedtest{2}
+  \ion@conflict@definedtest{3}
+  \ion@conflict@definedtest{4}
+  \ion@conflict@definedtest{5}
+  \ion@conflict@definedtest{6}
+  \ion@conflict@definedtest{7}
+  \ion@conflict@definedtest{8}
+  \ion@conflict@definedtest{9}
+\endgroup
+%    \end{macrocode}
+%
+% After the above test the definitions of the characters of
+% \textsf{ionumbers} can be applied.
+%    \begin{macrocode}
+\ion@define@charmacros
+%    \end{macrocode}
+%
+% Additionally, \textsf{ionumbers} tests for redefinitions of the macros
+% of the characters at the begining of the document.
+%    \begin{macrocode}
+\newcommand*{\ion@conflict@redefinedtest}[2]{%
+  \ifx#1#2\else\PackageWarning{ionumbers}%
+    {Potential conflict with other package(s) detected.\MessageBreak%
+    `\string#1' has been redefined. This might break ionumbers!\MessageBreak}%
+  \fi}
+\begingroup
+  \ion@separators@active\ion@signs@active\ion@digits@active
+  \gdef\ion@conflict@redefinedtest@macro{%
+    \ion@conflict@redefinedtest{,}{\ion@comma}%
+    \ion@conflict@redefinedtest{.}{\ion@point}%
+    \ion@conflict@redefinedtest{+}{\ion@plus}%
+    \ion@conflict@redefinedtest{-}{\ion@minus}%
+    \ion@conflict@redefinedtest{0}{\ion@zero}%
+    \ion@conflict@redefinedtest{1}{\ion@one}%
+    \ion@conflict@redefinedtest{2}{\ion@two}%
+    \ion@conflict@redefinedtest{3}{\ion@three}%
+    \ion@conflict@redefinedtest{4}{\ion@four}%
+    \ion@conflict@redefinedtest{5}{\ion@five}%
+    \ion@conflict@redefinedtest{6}{\ion@six}%
+    \ion@conflict@redefinedtest{7}{\ion@seven}%
+    \ion@conflict@redefinedtest{8}{\ion@eight}%
+    \ion@conflict@redefinedtest{9}{\ion@nine}%
+  }
+\endgroup
+\AtBeginDocument{\ion@conflict@redefinedtest@macro}
+%    \end{macrocode}
+%
+% ---------------------------------------------------------------------
+%
+% \subsection{Commands for current number}
+%
+% Numbers are processed by first storing one character after the other in an
+% internal macro to be able to automatically group digits. The basic idea when
+% adding single characters is
+% \begin{itemize}
+%   \item remember, whether we processing the thousands or the thousandths part
+%     of a number (|\ifion@beforedecimal|)
+%   \item calculate the number of digits processed modulo 3 plus 1 in the
+%     current part and
+%     \begin{itemize}
+%       \item for the thousands part: add |\ion@thousands@sepa| for 1,
+%         |\ion@thousands@sepb| for 2, and |\ion@thousands@sepc| for 3 after
+%         a digit
+%       \item for the thousandths part: add |\ion@thousandths@sep| after each
+%         third digit
+%     \end{itemize}
+% \end{itemize}
+% The macros |\ion@thousands@sep...| and |\ion@thousandths@sep| are empty by
+% default. Before outputting the number, the number of digits in the thousands
+% part is known and the correct |\ion@thousands@sep...| macro can be set to the
+% thousands separator for correct grouping.
+%
+% First of all, the |if|s, counters and empty separator macros are initialized.
+%    \begin{macrocode}
+\newif\ifion@beforedecimal\ion@beforedecimaltrue
+\newif\ifion@noexplicitthousands\ion@noexplicitthousandstrue
+\newif\ifion@exponent@superscript\ion@exponent@superscriptfalse
+\newcount\ion@thousands@currpos\ion@thousands@currpos=0
+\newcount\ion@thousandths@currpos\ion@thousandths@currpos=0
+\def\ion@currnum{}
+\def\ion@thousands@sepa{}
+\def\ion@thousands@sepb{}
+\def\ion@thousands@sepc{}
+\def\ion@thousandths@sep{}
+%    \end{macrocode}
+%
+% The macro |\ion@currnum@pushback| adds the character in its argument to
+% the end of |\ion@currnum|. In the starred version adding an empty separator
+% macros is omitted.
+%    \begin{macrocode}
+\newcommand{\ion@currnum@pushback}{\@ifstar{\ion@currnum@pushback@@}%
+  {\ion@currnum@pushback@}}
+\newcommand*{\ion@currnum@pushback@@}[1]{%
+  \ion@addto@macro{\ion@currnum}{#1}%
+}
+\newcommand*{\ion@currnum@pushback@}[1]{%
+  \ifion@beforedecimal%
+    %% push back (empty) separator and character
+    \ifcase\ion@thousands@currpos%
+      \ion@addto@macro{\ion@currnum}{#1}%
+    \or%
+      \ion@addto@macro{\ion@currnum}{\ion@thousands@sepa#1}%
+    \or%
+      \ion@addto@macro{\ion@currnum}{\ion@thousands@sepb#1}%
+    \or%
+      \ion@addto@macro{\ion@currnum}{\ion@thousands@sepc#1}%
+    \fi%
+    %% advance thousands counter
+    \advance\ion@thousands@currpos by1\relax%
+    \ifnum\ion@thousands@currpos>3%
+      \ion@thousands@currpos=1%
+    \fi%
+  \else%
+    %% push back (empty) separator and character
+    \ifnum\ion@thousandths@currpos=3%
+      \ion@addto@macro{\ion@currnum}{\ion@thousandths@sep#1}%
+    \else%
+      \ion@addto@macro{\ion@currnum}{#1}%
+    \fi%
+    %% advance thousandths counter
+    \advance\ion@thousandths@currpos by1\relax%
+    \ifnum\ion@thousandths@currpos>3%
+      \ion@thousandths@currpos=1%
+    \fi%
+  \fi%
+}
+%    \end{macrocode}
+%
+% The |\ion@currnum@output| macro defines the empty separator macros (depending
+% on the current configuration), outputs the current number, and resets
+% everything for the next number.
+%    \begin{macrocode}
+\newcommand*{\ion@currnum@output}{%
+  \begingroup%
+    %% set automatic thousands separator
+    \ifion@autothousands%
+      \ifion@noexplicitthousands%
+        \ifcase\ion@thousands@currpos%
+          %% do nothing
+        \or%
+          \def\ion@thousands@sepa{\ion@thousands@curr}%
+        \or%
+          \def\ion@thousands@sepb{\ion@thousands@curr}%
+        \or%
+          \def\ion@thousands@sepc{\ion@thousands@curr}%
+        \fi%
+      \fi%
+    \fi%
+    %% set automatic thousandths separator
+    \ifion@autothousandths%
+      \def\ion@thousandths@sep{\ion@thousandths@curr}%
+    \fi%
+    %% output number
+    \ifion@exponent@superscript%
+      ^{\ion@currnum}%
+    \else%
+      \ion@currnum%
+    \fi%
+  \endgroup%
+  %% reset stuff for next number
+  \ion@thousands@currpos=0%
+  \ion@thousandths@currpos=0%
+  \def\ion@currnum{}%
+  \ion@beforedecimaltrue%
+  \ion@noexplicitthousandstrue%
+  \ion@exponent@superscriptfalse}
+%    \end{macrocode}
+%
+% This macro is identical to |\l@addto@macro| from \textsf{koma-script bundle}.
+%    \begin{macrocode}
+\newcommand{\ion@addto@macro}[2]{%
+  \begingroup\toks@\expandafter{#1#2}%
+    \edef\@tempa{\endgroup\def\noexpand#1{\the\toks@}}%
+  \@tempa}
+%    \end{macrocode}
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \Finale
+%
+\endinput
diff --git a/Master/texmf-dist/source/latex/ionumbers/ionumbers.ins b/Master/texmf-dist/source/latex/ionumbers/ionumbers.ins
new file mode 100644
index 00000000000..fc5505d5552
--- /dev/null
+++ b/Master/texmf-dist/source/latex/ionumbers/ionumbers.ins
@@ -0,0 +1,82 @@
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% installation file for ionumbers package
+%
+% Copyright 2008 Christian Schneider <software(at)chschneider(dot)eu>
+%
+% This file is part of ionumbers.
+%
+% ionumbers is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License version 3 as
+% published by the Free Software Foundation, not any later version.
+%
+% ionumbers is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+%
+% WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\input docstrip.tex
+%\keepsilent
+
+\usedir{tex/latex/ionumbers}
+
+\preamble
+
+This is a generated file.
+
+Copyright 2007-2008 Christian Schneider <software(at)chschneider(dot)eu>
+
+idea and parts of this package based on: ziffer.sty v2.1
+Copyright Martin Vaeth <vaeth@mathematik.uni-wuerzburg.de>
+
+ion@addto@macro: identical to l@addto@macro from koma-script
+                 bundle v2.9t
+Copyright 1994-2004 Markus Kohm and Frank Neukam
+
+Thanks to Martin Vaeth and Markus Kohm for permitting to use their
+code in this package. Please do not bother Martin and Markus with
+questions or bugs concering this package!
+
+This file is part of ionumbers.
+
+ionumbers is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License version 3 as
+published by the Free Software Foundation, not any later version.
+
+ionumbers is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+
+WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
+
+\endpreamble
+
+\generate{\file{ionumbers.sty}{\from{ionumbers.dtx}{package}}}
+
+\obeyspaces
+\Msg{****************************************************}
+\Msg{*                                                  *}
+\Msg{* To finish the installation you have to move the  *}
+\Msg{* following file into a directory searched by TeX: *}
+\Msg{*                                                  *}
+\Msg{*                ionumbers.sty                     *}
+\Msg{*                                                  *}
+\Msg{* To produce the documentation run the file        *}
+\Msg{* ionumbers.dtx through LaTeX.                     *}
+\Msg{*                                                  *}
+\Msg{* Happy TeXing!                                    *}
+\Msg{*                                                  *}
+\Msg{****************************************************}
+
+\endbatchfile
diff --git a/Master/texmf-dist/tex/latex/ionumbers/ionumbers.sty b/Master/texmf-dist/tex/latex/ionumbers/ionumbers.sty
new file mode 100644
index 00000000000..85ede742a19
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/ionumbers/ionumbers.sty
@@ -0,0 +1,636 @@
+%%
+%% This is file `ionumbers.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% ionumbers.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% Copyright 2007-2008 Christian Schneider <software(at)chschneider(dot)eu>
+%% 
+%% idea and parts of this package based on: ziffer.sty v2.1
+%% Copyright Martin Vaeth <vaeth@mathematik.uni-wuerzburg.de>
+%% 
+%% ion@addto@macro: identical to l@addto@macro from koma-script
+%%                  bundle v2.9t
+%% Copyright 1994-2004 Markus Kohm and Frank Neukam
+%% 
+%% Thanks to Martin Vaeth and Markus Kohm for permitting to use their
+%% code in this package. Please do not bother Martin and Markus with
+%% questions or bugs concering this package!
+%% 
+%% This file is part of ionumbers.
+%% 
+%% ionumbers is free software: you can redistribute it and/or modify
+%% it under the terms of the GNU General Public License version 3 as
+%% published by the Free Software Foundation, not any later version.
+%% 
+%% ionumbers is distributed in the hope that it will be useful,
+%% but WITHOUT ANY WARRANTY; without even the implied warranty of
+%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+%% GNU General Public License for more details.
+%% 
+%% You should have received a copy of the GNU General Public License
+%% along with ionumbers.  If not, see <http://www.gnu.org/licenses/>.
+%% 
+%% WARNING: THIS IS ALPHA SOFTWARE AND MAY CONTAIN SERIOUS BUGS!
+%% 
+\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+\ProvidesPackage{ionumbers}
+  [2008/11/02 v0.2.1-alpha restyle numbers in math mode]
+\RequirePackage{keyval}
+\newif\ifion@autothousands
+\newif\ifion@autothousandths
+\newcommand*\ion@defpackopts{\define@key{ion@packopts}}
+\newcommand*\ion@setpackopts{\setkeys{ion@packopts}}
+\ion@defpackopts{comma}{%
+  \def\ion@comma@reset{\csname ion@comma@#1\endcsname}%
+  \def\ion@aftercomma@reset{\csname ion@aftercomma@#1\endcsname}}
+\ion@defpackopts{point}{%
+  \def\ion@point@reset{\csname ion@point@#1\endcsname}%
+  \def\ion@afterpoint@reset{\csname ion@afterpoint@#1\endcsname}}
+\ion@defpackopts{decimal}{\def\ion@decimal@reset{%
+  \csname ion@decimal@#1\endcsname}}
+\ion@defpackopts{thousands}{\def\ion@thousands@reset{%
+  \csname ion@thousands@#1\endcsname}}
+\ion@defpackopts{thousandths}{\def\ion@thousandths@reset{%
+  \csname ion@thousandths@#1\endcsname}}
+\ion@defpackopts{exponent}{\def\ion@exponent@reset{%
+  \csname ion@exponent@#1\endcsname}}
+\ion@defpackopts{autothousands}[true]{\def\ion@autothousandsreset{%
+  \csname ion@autothousands#1\endcsname}\ion@autothousandsreset}
+\ion@defpackopts{autothousandths}[true]{\def\ion@autothousandthsreset{%
+  \csname ion@autothousandths#1\endcsname}\ion@autothousandthsreset}
+\ion@setpackopts{comma=default,point=default,thousands=default,%
+  decimal=default,thousandths=default,exponent=default,autothousands=false,%
+  autothousandths=false}
+\DeclareOption*{\expandafter\ion@setpackopts\expandafter{\CurrentOption}}
+\ProcessOptions\relax
+\newcommand*\ion@deflocopts{\define@key{ion@locopts}}
+\newcommand*\ionumbersstyle[1]{\setkeys{ion@locopts}{#1}}
+\ion@deflocopts{comma}{%
+  \def\ion@comma@curr{\csname ion@comma@#1\endcsname}%
+  \def\ion@aftercomma@curr{\csname ion@aftercomma@#1\endcsname}}
+\ion@deflocopts{point}{%
+  \def\ion@point@curr{\csname ion@point@#1\endcsname}%
+  \def\ion@afterpoint@curr{\csname ion@afterpoint@#1\endcsname}}
+\ion@deflocopts{decimal}{\def\ion@decimal@curr{%
+  \csname ion@decimal@#1\endcsname}}
+\ion@deflocopts{thousands}{\def\ion@thousands@curr{%
+  \csname ion@thousands@#1\endcsname}}
+\ion@deflocopts{thousandths}{\def\ion@thousandths@curr{%
+  \csname ion@thousandths@#1\endcsname}}
+\ion@deflocopts{exponent}{\def\ion@exponent@curr{%
+  \csname ion@exponent@#1\endcsname}}
+\ion@deflocopts{autothousands}[true]{\csname ion@autothousands#1\endcsname}
+\ion@deflocopts{autothousandths}[true]{\csname ion@autothousandths#1\endcsname}
+\newcommand*\ionumbersresetstyle{%
+  \ionumbersstyle{comma=reset,point=reset,thousands=reset,%
+    decimal=reset,thousandths=reset,exponent=reset,autothousands=reset,%
+    autothousandths=reset}}
+\AtEndOfPackage{\ionumbersresetstyle}
+\newcommand*\newionumbersthousands[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@thousands@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\newionumbersdecimal[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@decimal@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\newionumbersthousandths[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@thousandths@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\newionumbersexponent{%
+  \@ifstar{\newionumbersexponent@@}{\newionumbersexponent@}}
+\newcommand*\newionumbersexponent@[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\newionumbersexponent@@[2]{\expandafter\newcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}%
+  \ion@exponent@superscripttrue}}
+\newcommand*\renewionumbersthousands[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@thousands@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\renewionumbersdecimal[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@decimal@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\renewionumbersthousandths[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@thousandths@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\renewionumbersexponent{%
+  \@ifstar{\renewionumbersexponent@@}{\renewionumbersexponent@}}
+\newcommand*\renewionumbersexponent@[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}}}
+\newcommand*\renewionumbersexponent@@[2]{\expandafter\renewcommand%
+  \expandafter*\csname ion@exponent@#1\endcsname{\ionumbersoff{#2}%
+  \ion@exponent@superscripttrue}}
+\mathchardef\ion@point@original="013A
+\mathchardef\ion@comma@original="613B
+\mathchardef\ion@plus@original="202B
+\mathchardef\ion@minus@original="2200
+\def\ion@comma@ignore{}
+\def\ion@comma@decimal{\ion@decimal@curr}
+\def\ion@comma@thousands{\ion@thousands@curr}
+\def\ion@comma@default{\ion@comma@thousands}
+\def\ion@aftercomma@ignore{}
+\def\ion@aftercomma@decimal{\ion@beforedecimalfalse}
+\def\ion@aftercomma@thousands{\ion@noexplicitthousandsfalse}
+\def\ion@aftercomma@default{\ion@aftercomma@thousands}
+\def\ion@point@ignore{}
+\def\ion@point@decimal{\ion@decimal@curr}
+\def\ion@point@thousands{\ion@thousands@curr}
+\def\ion@point@default{\ion@point@decimal}
+\def\ion@afterpoint@ignore{}
+\def\ion@afterpoint@decimal{\ion@beforedecimalfalse}
+\def\ion@afterpoint@thousands{\ion@noexplicitthousandsfalse}
+\def\ion@afterpoint@default{\ion@afterpoint@decimal}
+\mathchardef\ion@decimal@point="013A
+\mathchardef\ion@decimal@comma="013B
+\mathchardef\ion@decimal@punctpoint="613A
+\mathchardef\ion@decimal@punctcomma="613B
+\def\ion@decimal@default{\ion@decimal@point}
+\def\ion@thousands@none{}
+\mathchardef\ion@thousands@comma="013B
+\mathchardef\ion@thousands@point="013A
+\mathchardef\ion@thousands@punctcomma="613B
+\mathchardef\ion@thousands@punctpoint="613A
+\def\ion@thousands@apostrophe{^\prime}
+\def\ion@thousands@phantom{\phantom{\ion@point@original}}
+\def\ion@thousands@space{\,}
+\def\ion@thousands@default{\ion@thousands@punctcomma}
+\def\ion@thousandths@none{}
+\mathchardef\ion@thousandths@comma="013B
+\mathchardef\ion@thousandths@point="013A
+\mathchardef\ion@thousandths@punctcomma="613B
+\mathchardef\ion@thousandths@punctpoint="613A
+\def\ion@thousandths@apostrophe{^\prime}
+\def\ion@thousandths@phantom{\phantom{\ion@point@original}}
+\def\ion@thousandths@space{\,}
+\def\ion@thousandths@default{\ion@thousandths@space}
+\def\ion@exponent@none{}
+\mathchardef\ion@exponent@ite="7165
+\mathchardef\ion@exponent@itE="7145
+\mathchardef\ion@exponent@rme="7065
+\mathchardef\ion@exponent@rmE="7045
+\def\ion@exponent@timestento{\times10\,\ion@exponent@superscripttrue}
+\def\ion@exponent@cdottento{\cdot10\,\ion@exponent@superscripttrue}
+\def\ion@exponent@wedge{^\wedge}
+\def\ion@exponent@default{\ion@exponent@ite}
+\def\ion@separators@active{\catcode`\,=\active\catcode`\.=\active\relax}
+\def\ion@signs@active{\catcode`\+=\active\catcode`\-=\active\relax}
+\def\ion@digits@active{\catcode`\,=\active\catcode`\.=\active%
+  \catcode`\0=\active\catcode`\1=\active\catcode`\2=\active%
+  \catcode`\3=\active\catcode`\4=\active\catcode`\5=\active%
+  \catcode`\6=\active\catcode`\7=\active\catcode`\8=\active%
+  \catcode`\9=\active\relax}
+\def\ion@separators@math@active{\mathcode`,="8000\mathcode`.="8000\relax}
+\def\ion@separators@math@inactive{\mathcode`,="613B\mathcode`.="013A\relax}
+\def\ion@signs@math@active{\mathcode`+="8000\mathcode`-="8000\relax}
+\def\ion@signs@math@inactive{\mathcode`+="202B\mathcode`-="2200\relax}
+\def\ion@digits@math@active{\mathcode`0="8000\mathcode`1="8000\mathcode`2="8000%
+  \mathcode`3="8000\mathcode`4="8000\mathcode`5="8000\mathcode`6="8000%
+  \mathcode`7="8000\mathcode`8="8000\mathcode`9="8000\relax}
+\def\ion@digits@math@inactive{\mathcode`0="7030\mathcode`1="7031%
+  \mathcode`2="7032\mathcode`3="7033\mathcode`4="7034\mathcode`5="7035%
+  \mathcode`6="7036\mathcode`7="7037\mathcode`8="7038\mathcode`9="7039\relax}
+\def\ionumbers{\ion@separators@math@active\ion@signs@math@active%
+  \ion@digits@math@active}
+\def\endionumbers{\ion@separators@math@inactive\ion@signs@math@inactive%
+  \ion@digits@math@inactive}
+\newcommand\ionumbersoff[1]{\begingroup\endionumbers#1\ionumbers\endgroup}
+\AtBeginDocument{\ionumbers}
+\def\ion@comma{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@comma@curr}\ion@aftercomma@curr%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@comma@curr}\ion@aftercomma@curr%
+        \@warning{Too many separators}%
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@pushback*{\ion@comma@curr}\ion@aftercomma@curr%
+          \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output\ion@comma@original%
+      }%
+    }%
+  }%
+}
+\def\ion@point{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@point@curr}\ion@afterpoint@curr%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@point@curr}\ion@afterpoint@curr%
+        \@warning{Too many separators}%
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@pushback*{\ion@point@curr}\ion@afterpoint@curr%
+          \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output\ion@point@original%
+      }%
+    }%
+  }%
+}
+\def\ion@plus{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@plus@original}%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@plus@original}%
+    }{%
+      \ion@ifnextsign{%
+        \ion@currnum@pushback*{\ion@plus@original}\@warning{Too many signs}%
+      }{%
+        \ion@currnum@output\ion@plus@original%
+      }%
+    }%
+  }%
+}
+\def\ion@minus{%
+  \ion@ifnextdigit{%
+    \ion@currnum@pushback*{\ion@minus@original}%
+  }{%
+    \ion@ifnextseparator{%
+      \ion@currnum@pushback*{\ion@minus@original}%
+    }{%
+      \ion@ifnextsign{%
+        \ion@currnum@pushback*{\ion@minus@original}\@warning{Too many signs}%
+      }{%
+        \ion@currnum@output\ion@minus@original%
+      }%
+    }%
+  }%
+}
+\def\ion@zero{\ion@currnum@pushback{\mathchar"7030}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@one{\ion@currnum@pushback{\mathchar"7031}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@two{\ion@currnum@pushback{\mathchar"7032}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@three{\ion@currnum@pushback{\mathchar"7033}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@four{\ion@currnum@pushback{\mathchar"7034}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@five{\ion@currnum@pushback{\mathchar"7035}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@six{\ion@currnum@pushback{\mathchar"7036}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@seven{\ion@currnum@pushback{\mathchar"7037}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@eight{\ion@currnum@pushback{\mathchar"7038}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\def\ion@nine{\ion@currnum@pushback{\mathchar"7039}%
+  \ion@ifnextdigit{%
+    %% nothing
+  }{%
+    \ion@ifnextseparator{%
+      %% nothing
+    }{%
+      \ion@ifnextchar e{%
+        \ion@currnum@output\ion@exponent@curr\@gobble%
+      }{%
+        \ion@currnum@output%
+      }%
+    }%
+  }%
+}
+\begingroup
+  \ion@separators@active\ion@signs@active\ion@digits@active
+  \gdef\ion@define@charmacros{%
+    \global\let,=\ion@comma%
+    \global\let.=\ion@point%
+    \global\let+=\ion@plus%
+    \global\let-=\ion@minus%
+    \global\let0=\ion@zero%
+    \global\let1=\ion@one%
+    \global\let2=\ion@two%
+    \global\let3=\ion@three%
+    \global\let4=\ion@four%
+    \global\let5=\ion@five%
+    \global\let6=\ion@six%
+    \global\let7=\ion@seven%
+    \global\let8=\ion@eight%
+    \global\let9=\ion@nine%
+  }
+\endgroup
+\long\def\ion@ifnextdigit#1#2{%
+  \def\reserved@a{#1}%
+  \def\reserved@b{#2}%
+  \futurelet\@let@token\ion@ifnextdigit@}
+\def\ion@ifnextdigit@{%
+  \ifx\@let@token1\let\reserved@c\reserved@a\else%
+    \ifx\@let@token2\let\reserved@c\reserved@a\else%
+      \ifx\@let@token3\let\reserved@c\reserved@a\else%
+        \ifx\@let@token4\let\reserved@c\reserved@a\else%
+          \ifx\@let@token5\let\reserved@c\reserved@a\else%
+            \ifx\@let@token6\let\reserved@c\reserved@a\else%
+              \ifx\@let@token7\let\reserved@c\reserved@a\else%
+                \ifx\@let@token8\let\reserved@c\reserved@a\else%
+                  \ifx\@let@token9\let\reserved@c\reserved@a\else%
+                    \ifx\@let@token0\let\reserved@c\reserved@a\else%
+                      \let\reserved@c\reserved@b%
+                    \fi%
+                  \fi%
+                \fi%
+              \fi%
+            \fi%
+          \fi%
+        \fi%
+      \fi%
+    \fi%
+  \fi%
+  \reserved@c}
+\long\def\ion@ifnextseparator#1#2{%
+  \def\reserved@a{#1}%
+  \def\reserved@b{#2}%
+  \futurelet\@let@token\ion@ifnextseparator@}
+\def\ion@ifnextseparator@{%
+  \ifx\@let@token,\let\reserved@c\reserved@a\else%
+    \ifx\@let@token.\let\reserved@c\reserved@a\else%
+      \let\reserved@c\reserved@b%
+    \fi%
+  \fi%
+  \reserved@c}
+\long\def\ion@ifnextsign#1#2{%
+  \def\reserved@a{#1}%
+  \def\reserved@b{#2}%
+  \futurelet\@let@token\ion@ifnextsign@}
+\def\ion@ifnextsign@{%
+  \ifx\@let@token+\let\reserved@c\reserved@a\else%
+    \ifx\@let@token-\let\reserved@c\reserved@a\else%
+      \let\reserved@c\reserved@b%
+    \fi%
+  \fi%
+  \reserved@c}
+\long\def\ion@ifnextchar#1#2#3{%
+  \let\reserved@d=#1%
+  \def\reserved@a{#2}%
+  \def\reserved@b{#3}%
+  \futurelet\@let@token\ion@ifnextchar@}
+\def\ion@ifnextchar@{%
+  \ifx\@let@token\reserved@d%
+    \let\reserved@c\reserved@a%
+  \else%
+    \let\reserved@c\reserved@b%
+  \fi%
+  \reserved@c}
+\newcommand*{\ion@conflict@package}[1]{%
+  \@ifpackageloaded{#1}{\PackageError{ionumbers}%
+    {Packages #1 and ionumbers conflict!\MessageBreak%
+    Do not load both packages in the same document}{}}{}}
+\newcommand*{\ion@problem@package}[2]{%
+  \@ifpackageloaded{#1}{\PackageWarning{ionumbers}%
+    {Loading #1 and ionumbers is\MessageBreak%
+    problematic!\MessageBreak%
+    #2}{}}}
+\AtBeginDocument{%
+  \ion@conflict@package{ziffer}%
+  \ion@problem@package{dcolumn}{Use `tabular's inside \string\ionumbersoff}%
+}
+\newcommand*\ion@conflict@definedtest[1]{%
+  \ifx#1\@undefined\else\PackageWarning{ionumbers}%
+    {Potential conflict with other package(s) detected.\MessageBreak%
+    `\string#1' has already been defined. I will redefine it.\MessageBreak%
+    This might break other package(s)!\MessageBreak}\fi}
+\begingroup
+  \ion@separators@active\ion@signs@active\ion@digits@active
+  \ion@conflict@definedtest{,}
+  \ion@conflict@definedtest{.}
+  \ion@conflict@definedtest{+}
+  \ion@conflict@definedtest{-}
+  \ion@conflict@definedtest{0}
+  \ion@conflict@definedtest{1}
+  \ion@conflict@definedtest{2}
+  \ion@conflict@definedtest{3}
+  \ion@conflict@definedtest{4}
+  \ion@conflict@definedtest{5}
+  \ion@conflict@definedtest{6}
+  \ion@conflict@definedtest{7}
+  \ion@conflict@definedtest{8}
+  \ion@conflict@definedtest{9}
+\endgroup
+\ion@define@charmacros
+\newcommand*{\ion@conflict@redefinedtest}[2]{%
+  \ifx#1#2\else\PackageWarning{ionumbers}%
+    {Potential conflict with other package(s) detected.\MessageBreak%
+    `\string#1' has been redefined. This might break ionumbers!\MessageBreak}%
+  \fi}
+\begingroup
+  \ion@separators@active\ion@signs@active\ion@digits@active
+  \gdef\ion@conflict@redefinedtest@macro{%
+    \ion@conflict@redefinedtest{,}{\ion@comma}%
+    \ion@conflict@redefinedtest{.}{\ion@point}%
+    \ion@conflict@redefinedtest{+}{\ion@plus}%
+    \ion@conflict@redefinedtest{-}{\ion@minus}%
+    \ion@conflict@redefinedtest{0}{\ion@zero}%
+    \ion@conflict@redefinedtest{1}{\ion@one}%
+    \ion@conflict@redefinedtest{2}{\ion@two}%
+    \ion@conflict@redefinedtest{3}{\ion@three}%
+    \ion@conflict@redefinedtest{4}{\ion@four}%
+    \ion@conflict@redefinedtest{5}{\ion@five}%
+    \ion@conflict@redefinedtest{6}{\ion@six}%
+    \ion@conflict@redefinedtest{7}{\ion@seven}%
+    \ion@conflict@redefinedtest{8}{\ion@eight}%
+    \ion@conflict@redefinedtest{9}{\ion@nine}%
+  }
+\endgroup
+\AtBeginDocument{\ion@conflict@redefinedtest@macro}
+\newif\ifion@beforedecimal\ion@beforedecimaltrue
+\newif\ifion@noexplicitthousands\ion@noexplicitthousandstrue
+\newif\ifion@exponent@superscript\ion@exponent@superscriptfalse
+\newcount\ion@thousands@currpos\ion@thousands@currpos=0
+\newcount\ion@thousandths@currpos\ion@thousandths@currpos=0
+\def\ion@currnum{}
+\def\ion@thousands@sepa{}
+\def\ion@thousands@sepb{}
+\def\ion@thousands@sepc{}
+\def\ion@thousandths@sep{}
+\newcommand{\ion@currnum@pushback}{\@ifstar{\ion@currnum@pushback@@}%
+  {\ion@currnum@pushback@}}
+\newcommand*{\ion@currnum@pushback@@}[1]{%
+  \ion@addto@macro{\ion@currnum}{#1}%
+}
+\newcommand*{\ion@currnum@pushback@}[1]{%
+  \ifion@beforedecimal%
+    %% push back (empty) separator and character
+    \ifcase\ion@thousands@currpos%
+      \ion@addto@macro{\ion@currnum}{#1}%
+    \or%
+      \ion@addto@macro{\ion@currnum}{\ion@thousands@sepa#1}%
+    \or%
+      \ion@addto@macro{\ion@currnum}{\ion@thousands@sepb#1}%
+    \or%
+      \ion@addto@macro{\ion@currnum}{\ion@thousands@sepc#1}%
+    \fi%
+    %% advance thousands counter
+    \advance\ion@thousands@currpos by1\relax%
+    \ifnum\ion@thousands@currpos>3%
+      \ion@thousands@currpos=1%
+    \fi%
+  \else%
+    %% push back (empty) separator and character
+    \ifnum\ion@thousandths@currpos=3%
+      \ion@addto@macro{\ion@currnum}{\ion@thousandths@sep#1}%
+    \else%
+      \ion@addto@macro{\ion@currnum}{#1}%
+    \fi%
+    %% advance thousandths counter
+    \advance\ion@thousandths@currpos by1\relax%
+    \ifnum\ion@thousandths@currpos>3%
+      \ion@thousandths@currpos=1%
+    \fi%
+  \fi%
+}
+\newcommand*{\ion@currnum@output}{%
+  \begingroup%
+    %% set automatic thousands separator
+    \ifion@autothousands%
+      \ifion@noexplicitthousands%
+        \ifcase\ion@thousands@currpos%
+          %% do nothing
+        \or%
+          \def\ion@thousands@sepa{\ion@thousands@curr}%
+        \or%
+          \def\ion@thousands@sepb{\ion@thousands@curr}%
+        \or%
+          \def\ion@thousands@sepc{\ion@thousands@curr}%
+        \fi%
+      \fi%
+    \fi%
+    %% set automatic thousandths separator
+    \ifion@autothousandths%
+      \def\ion@thousandths@sep{\ion@thousandths@curr}%
+    \fi%
+    %% output number
+    \ifion@exponent@superscript%
+      ^{\ion@currnum}%
+    \else%
+      \ion@currnum%
+    \fi%
+  \endgroup%
+  %% reset stuff for next number
+  \ion@thousands@currpos=0%
+  \ion@thousandths@currpos=0%
+  \def\ion@currnum{}%
+  \ion@beforedecimaltrue%
+  \ion@noexplicitthousandstrue%
+  \ion@exponent@superscriptfalse}
+\newcommand{\ion@addto@macro}[2]{%
+  \begingroup\toks@\expandafter{#1#2}%
+    \edef\@tempa{\endgroup\def\noexpand#1{\the\toks@}}%
+  \@tempa}
+\endinput
+%%
+%% End of file `ionumbers.sty'.